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Bai L, Wang P, Li C, Li N, Chen X, Li Y, Xiao J. Polyaspartate Polyurea-Based Solid Polymer Electrolyte with High Ionic Conductivity for the All-Solid-State Lithium-Ion Battery. ACS OMEGA 2023; 8:20272-20282. [PMID: 37332777 PMCID: PMC10268638 DOI: 10.1021/acsomega.2c07349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 04/11/2023] [Indexed: 06/20/2023]
Abstract
The existing in situ preparation methods of solid polymer electrolytes (SPEs) often require the use of a solvent, which would lead to a complicated process and potential safety hazards. Therefore, it is urgent to develop a solvent-free in situ method to produce SPEs with good processability and excellent compatibility. Herein, a series of polyaspartate polyurea-based SPEs (PAEPU-based SPEs) with abundant (PO)x(EO)y(PO)z segments and cross-linked structures were developed by systematically regulating the molar ratios of isophorone diisocyanate (IPDI) and isophorone diisocyanate trimer (tri-IPDI) in the polymer backbone and LiTFSI concentrations via an in situ polymerization method, which gave rise to good interfacial compatibility. Furthermore, the in situ-prepared PAEPU-SPE@D15 based on the IPDI/tri-IPDI molar ratio of 2:1 and 15 wt % LiTFSI exhibits an improved ionic conductivity of 6.80 × 10-5 S/cm at 30 °C and could reach 10-4 orders of magnitude when the temperature was above 40 °C. The Li|LiFePO4 battery based on PAEPU-SPE@D15 had a wide electrochemical stability window of 5.18 V, demonstrating a superior interface compatibility toward LiFePO4 and the lithium metal anode, exhibited a high discharge capacity of 145.7 mAh g-1 at the 100th cycle and a capacity retention of 96.8%, and retained a coulombic efficiency of above 98.0%. These results showed that the PAEPU-SPE@D15 system displayed a stable cycle performance, excellent rate performance, and high safety compared with PEO systems, indicating that the PAEPU-based SPE system may play a crucial role in the future.
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Affiliation(s)
- Lu Bai
- Hebei
Key Laboratory of Flexible Functional Materials, School of Materials
Science and Engineering, Hebei University
of Science and Technology, Shijiazhuang 050000, China
- Institute
of Energy Source, Hebei Academy of Sciences, Shijiazhuang 050052, China
| | - Peng Wang
- Hebei
Key Laboratory of Flexible Functional Materials, School of Materials
Science and Engineering, Hebei University
of Science and Technology, Shijiazhuang 050000, China
| | - Chengyu Li
- Hebei
Key Laboratory of Flexible Functional Materials, School of Materials
Science and Engineering, Hebei University
of Science and Technology, Shijiazhuang 050000, China
| | - Na Li
- Hebei
Key Laboratory of Flexible Functional Materials, School of Materials
Science and Engineering, Hebei University
of Science and Technology, Shijiazhuang 050000, China
| | - Xiaoqi Chen
- Institute
of Energy Source, Hebei Academy of Sciences, Shijiazhuang 050052, China
| | - Yantao Li
- Institute
of Energy Source, Hebei Academy of Sciences, Shijiazhuang 050052, China
| | - Jijun Xiao
- Hebei
Key Laboratory of Flexible Functional Materials, School of Materials
Science and Engineering, Hebei University
of Science and Technology, Shijiazhuang 050000, China
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Trabelsi ABG, Mostafa AM, Alkallas FH, Elsharkawy WB, Al-Ahmadi AN, Ahmed HA, Nafee SS, Pashameah RA, Mwafy EA. Effect of CuO Nanoparticles on the Optical, Structural, and Electrical Properties in the PMMA/PVDF Nanocomposite. MICROMACHINES 2023; 14:1195. [PMID: 37374780 PMCID: PMC10304735 DOI: 10.3390/mi14061195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/27/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023]
Abstract
A polymeric nanocomposite film, composed of PMMA/PVDF and different amounts of CuO NPs, was successfully prepared using the casting method to enhance its electrical conductivity. Various techniques were employed to investigate their physicochemical properties. The addition of CuO NPs causes a noticeable difference in the intensities and locations of vibrational peaks in all bands, confirming the incorporation of CuO NPs inside the PVDF/PMMA. In addition, the broadening of the peak at 2θ = 20.6° becomes more intense with increasing amounts of CuO NPs, confirming the increase in the amorphous characteristic of PMMA/PVDF incorporated with CuO NPs in comparison with PMMA/PVDF. Furthermore, the image of the polymeric structure exhibits a smoother shape and interconnection of pore structure associated with spherical particles that agglomerate and give rise to a web-like organization that becomes a matrix. Increasing surface roughness is responsible for an increasing surface area. Moreover, the addition of CuO NPs in the PMMA/PVDF leads to a decrease in the energy band gap, and further increasing the additional amounts of CuO NPs causes the generation of localized states between the valence and conduction bands. Furthermore, the dielectric investigation shows an increase in the dielectric constant, dielectric loss, and electric conductivity, which may be an indication of an increase in the degree of disorder that confines the movement of charge carriers and demonstrates the creation of an interconnected percolating chain, enhancing its conductivity values compared with that without the incorporation of a matrix.
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Affiliation(s)
- Amira Ben Gouider Trabelsi
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (A.B.G.T.); (F.H.A.)
| | - Ayman M. Mostafa
- Spectroscopy Department, Physics Research Institute, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt
- Department of Physics, College of Science, Qassim University, P.O. Box 6644, Buraydah Almolaydah 51452, Saudi Arabia
| | - Fatemah H. Alkallas
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (A.B.G.T.); (F.H.A.)
| | - W. B. Elsharkawy
- Physics Department, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia;
| | - Ameenah N. Al-Ahmadi
- Department of Physics, Faculty of Applied Science, Umm Al-Qura University, Makkah 24230, Saudi Arabia;
| | - Hoda A. Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt;
| | - Sherif S. Nafee
- Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Rami Adel Pashameah
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah al-Mukarramah 24382, Saudi Arabia;
| | - Eman A. Mwafy
- Physical Chemistry Department, Advanced Materials Technology and Mineral Resources Research Institute, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt;
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Jain A, Ziai Y, Bochenek K, Manippady SR, Pierini F, Michalska M. Utilization of compressible hydrogels as electrolyte materials for supercapacitor applications. RSC Adv 2023; 13:11503-11512. [PMID: 37063734 PMCID: PMC10094976 DOI: 10.1039/d3ra00893b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/28/2023] [Indexed: 04/18/2023] Open
Abstract
Utilization of CoO@Co3O4-x-Ag (x denotes 1, 3, and 5 wt% of Ag) nanocomposites as supercapacitor electrodes is the main aim of this study. A new low-temperature wet chemical approach is proposed to modify the commercial cobalt oxide material with silver nanoparticle (NP) balls of size 1-5 nm. The structure and morphology of the as-prepared nanocomposites were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and N2 adsorption-desorption measurements. Hydrogels known to be soft but stable structures were used here as perfect carriers for conductive nanoparticles such as carbons. Furthermore, hydrogels with a large amount of water in their network can give more flexibility to the system. Fabrication of an electrochemical cell can be achieved by combining these materials with a layer-by-layer structure. The performance characteristics of the cells were examined by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and galvanostatic charge discharge (GCD). Cobalt oxide modified with 5 wt% Ag gave the best supercapacitor results, and the cell offers a specific capacitance of ∼38 mF cm-2 in two-electrode configurations.
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Affiliation(s)
- Amrita Jain
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Yasamin Ziai
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Kamil Bochenek
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Sai Rashmi Manippady
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Filippo Pierini
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Monika Michalska
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VŠB-Technical University of Ostrava 17. Listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
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Suresh S, Subramaniam MR, Hazra S, Pal BN, Batabyal SK. Solvent Evaporation Induced Large-Scale Synthesis of Cs 4PbBr 6 and CsPbBr 3 Microcrystals: Optical Properties and Backlight Application for LEDs. ACS OMEGA 2023; 8:4616-4626. [PMID: 36777580 PMCID: PMC9909814 DOI: 10.1021/acsomega.2c05862] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
The contemporary work focuses on embossing the emissive nature of lead halide perovskite materials, specifically Cs4PbBr6 microcrystal powder prepared via single step bulk recrystallization method followed by the solvent evaporation route from gram to kilogram scale. The X-ray diffraction pattern confirms the formation of phase pure Cs4PbBr6 with a goodness of fit value of 1.51 calculated from Rietveld refinement and the fluorophore powder manifesting an intrinsic band gap of 3.76 eV. The experimental yield of 99.4% indicates the absence of any unreacted precursors. The fabricated flexible, free-standing Cs4PbBr6@PMMA film encompassed better moisture stability without undergoing phase transitions for 400 days. The temperature-dependent photoluminescence spectra denote that 51% of the intensity was retained when cooled back to room temperature after heating it till 180 °C. Moisture studies at two extreme humidity conditions also reveal the appreciable stability of the fluorophore film against moisture. The stability studies with respect to UV irradiation substantiate that the film retained its stability even after exposing it continuously to UV radiation for seven days. The outstanding optical properties of these microcrystals, owing to the higher exciton binding energy, make them a promising candidate as excellent fluorophores for color conversion, backlight, and light-emitting applications. The Cs4PbBr6@PMMA film was employed as the top cover of a commercial blue LED, producing a robust green emission which revealed its possible application as a phosphor material.
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Affiliation(s)
- Swapnika Suresh
- Department
of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore641112, Tamil Nadu, India
| | - Mohan Raj Subramaniam
- Department
of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore641112, Tamil Nadu, India
| | - Sobhan Hazra
- School
of Material Science and Technology, Indian
Institute of Technology (BHU), Varanasi221005, Uttar
Pradesh, India
| | - Bhola Nath Pal
- School
of Material Science and Technology, Indian
Institute of Technology (BHU), Varanasi221005, Uttar
Pradesh, India
| | - Sudip K. Batabyal
- Department
of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore641112, Tamil Nadu, India
- Amrita
Center for Industrial Research & Innovation (ACIRI), Amrita School
of Engineering, Coimbatore, Amrita Vishwa
Vidyapeetham, Coimbatore641112, Tamil Nadu, India
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Influence of succinonitrile plasticizer on ionic conductivity, structural and dielectric properties of potassium-based PEO/PVdF blend polymer electrolyte. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02912-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Effect of TiO2 Nano-Filler on Electrical Properties of Na+ Ion Conducting PEO/PVDF Based Blended Polymer Electrolyte. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01947-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ganta KK, Jeedi VR, Kumar KV, Narsaiah EL. Preparation, characterization and impedance spectroscopic studies of Na+ ion conducting PEO + PVDF-blended polymer electrolytes. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2020. [DOI: 10.1080/1023666x.2020.1860396] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Kiran Kumar Ganta
- Department of Physics, B V Raju Institute of Technology, Narsapur, Telangana, India
| | - Venkata Ramana Jeedi
- Department of Physics, B V Raju Institute of Technology, Narsapur, Telangana, India
| | - K. Vijaya Kumar
- Department of Physics, JNTU Hyderabad, Kukatpally, Hyderabad, Telangana, India
| | - E. Laxmi Narsaiah
- Department of Physics, B V Raju Institute of Technology, Narsapur, Telangana, India
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